Microban formula inhibits the growth and reproduction of harmful bacteria, mold and mildew which can cause illness, odor, and staining. Its a silver based solution that is infused within vinyl handles to provide built in antimicrobial protection against contamination from human contact and food residues. Mircroban is safe for food contact and will not wash or wear away from use or cleaning. It is proven to keep serving utensils cleaner between washings. This antimicrobial formula is USA Environmental Protection Agency (EPA) registered and EU Biocidal Products Regulation (BPR) certified.